CVE-2008-4210

What it is

fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

2.2% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2008-09-29 17:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:57 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.2% in the next 30 days (EPSS).
• Severity: 4.6 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2008-09-29 17:17 UTC

Last modified

2026-06-16 22:57 UTC

Exploit probability

2.2% · EPSS, next 30 days

Weakness

CWE-264

Record status

Modified

Affected

• Linux Kernel ≤ 2.6.21.7
• Linux Kernel 2.2.27
• Linux Kernel 2.4.36
• Linux Kernel 2.4.36.1
• Linux Kernel 2.4.36.2
• Linux Kernel 2.4.36.3
• Linux Kernel 2.4.36.4
• Linux Kernel 2.4.36.5

Attack profile CVSS 2.0 · 4.6

Attack vector

Local

Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2008-4210.md and follow it. Check whether this project is affected by CVE-2008-4210. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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